best and easy programming language and IDE for app sesign and coding ?

Dear all
i would like to have your advise.
i am planning to adventure in this app development world.
i am looking for a development language and an IDE that i can use to design and develop apps (cross platform apps IOS, android and windows)

i am looking for a programming language very easy and fast to learn.

Thank you
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What programming languages you know already?
David Johnson, CD, MVPOwnerCommented:
learning the language is easy.. learning the programming mindset is difficult. You require a lot of attention to detail and sometimes it requires a lot of coding to get from what you see in your mind to what is attainable on the screen. Each platform has its strengths and weaknesses and a preferred way of doing something.  I'd start with javascript but you eventually will have to learn C or C++ and how to read each manufacturers documentation on the API calls available for you.
Look at Meteor.  It is a full-stack (MEAN) installation.  You write all client and server code in JavaScript.  You can create smart-phone applications as well as I/O to web browsers.
You are trying to take one giant step, w/o it might be better to take several small steps.

Look at AppInventor from MIT:

Easiest way to get started for Android.  And a working prototype is a good way to start any project.

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